The Dirt Logic 3.0 shocks are constructed with a steel body and finished in a tactical black Cerakote coating for extreme durability. This coating provides 120 hour salt spray compared to zinc plated shocks only going 48 hour salt spray. NitroSteel 1-1/4 inch piston rods are utilized to repel rock chipping while providing superior corrosion resistance. The cold wound Eibach coil springs have a 600 pound. spring rate to properly hold the weight of the Gen 1 Raptor. They work perfectly with the proprietary valving of the Dirt Logic 3.0 Coilovers for high speed offroad use. These Dirt Logic 3.0 Coilovers are an upgrade in quality and performance from the stock Raptor shocks that will be appreciated once behind the wheel in rugged offroad conditions.